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<div class="title">observer.hpp</div>  </div>
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<a href="observer_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="preprocessor">#pragma once</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;</div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="task_8hpp.html">task.hpp</a>&quot;</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;</div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacetf.html">tf</a> {</div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;</div><div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="classtf_1_1ObserverInterface.html">   64</a></span>&#160;<span class="keyword">class </span><a class="code" href="classtf_1_1ObserverInterface.html">ObserverInterface</a> {</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classtf_1_1Executor.html">Executor</a>;</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;  </div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;  <span class="keyword">public</span>:</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;  <span class="keyword">virtual</span> <a class="code" href="classtf_1_1ObserverInterface.html#adfd71c3af3ae2ea4f41eed26c1b6f604">~ObserverInterface</a>() = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;  </div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classtf_1_1ObserverInterface.html#a41e6e62f12bf9d9dc4fa74632f6825d9">set_up</a>(<span class="keywordtype">size_t</span> num_workers) = 0;</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;  </div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classtf_1_1ObserverInterface.html#afa57654edd6d0fcf188a6064823f3048">on_entry</a>(<span class="keywordtype">size_t</span> worker_id, <a class="code" href="classtf_1_1TaskView.html">TaskView</a> task_view) = 0;</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;  </div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classtf_1_1ObserverInterface.html#a8fcff02bfcea581d280e4de0247760d3">on_exit</a>(<span class="keywordtype">size_t</span> worker_id, <a class="code" href="classtf_1_1TaskView.html">TaskView</a> task_view) = 0;</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;};</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;<span class="comment">// ----------------------------------------------------------------------------</span></div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;<span class="comment">// ChromeObserver definition</span></div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;<span class="comment">// ----------------------------------------------------------------------------</span></div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;</div><div class="line"><a name="l00126"></a><span class="lineno"><a class="line" href="classtf_1_1ChromeObserver.html">  126</a></span>&#160;<span class="keyword">class </span><a class="code" href="classtf_1_1ChromeObserver.html">ChromeObserver</a> : <span class="keyword">public</span> <a class="code" href="classtf_1_1ObserverInterface.html">ObserverInterface</a> {</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classtf_1_1Executor.html">Executor</a>;</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;  </div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;  <span class="comment">// data structure to record each task execution</span></div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;  <span class="keyword">struct </span>Segment {</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;    <a class="codeRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> name;</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;    <a class="codeRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/chrono/time_point.html">std::chrono::time_point&lt;std::chrono::steady_clock&gt;</a> beg;</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;    <a class="codeRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/chrono/time_point.html">std::chrono::time_point&lt;std::chrono::steady_clock&gt;</a> end;</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;    Segment(</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;      <span class="keyword">const</span> <a class="codeRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a>&amp; n,</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;      <a class="codeRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/chrono/time_point.html">std::chrono::time_point&lt;std::chrono::steady_clock&gt;</a> b</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;    );</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;    Segment(</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;      <span class="keyword">const</span> <a class="codeRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a>&amp; n,</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;      <a class="codeRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/chrono/time_point.html">std::chrono::time_point&lt;std::chrono::steady_clock&gt;</a> b,</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;      <a class="codeRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/chrono/time_point.html">std::chrono::time_point&lt;std::chrono::steady_clock&gt;</a> e</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;    );</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;  };</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;  </div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;  <span class="comment">// data structure to store the entire execution timeline</span></div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;  <span class="keyword">struct </span>Timeline {</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;    <a class="codeRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/chrono/time_point.html">std::chrono::time_point&lt;std::chrono::steady_clock&gt;</a> origin;</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;    <a class="codeRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;std::vector&lt;Segment&gt;</a>&gt; segments;</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;    <a class="codeRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;std::stack&lt;std::chrono::time_point&lt;std::chrono::steady_clock&gt;</a>&gt;&gt; stacks;</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;  };  </div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;  <span class="keyword">public</span>:</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;    <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;    <span class="keywordtype">void</span> <a class="code" href="classtf_1_1ChromeObserver.html#a414d60cee91db1d3924636fcea5f4ea7">dump</a>(T&amp; ostream) <span class="keyword">const</span>;</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160; 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 name {n}, beg {b} {</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;} </div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;</div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;<span class="comment">// constructor</span></div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;<span class="keyword">inline</span> ChromeObserver::Segment::Segment(</div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;  <span class="keyword">const</span> <a class="codeRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a>&amp; n,</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;  <a class="codeRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/chrono/time_point.html">std::chrono::time_point&lt;std::chrono::steady_clock&gt;</a> b,</div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160; 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os)<span class="keyword"> const </span>{</div><div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;</div><div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;  <span class="keywordtype">size_t</span> first;</div><div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;</div><div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;  <span class="keywordflow">for</span>(first = 0; first&lt;_timeline.segments.size(); ++first) {</div><div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;    <span class="keywordflow">if</span>(_timeline.segments[first].size() &gt; 0) { </div><div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;      <span class="keywordflow">break</span>; </div><div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;    }</div><div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;  }</div><div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;</div><div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160; 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                          _timeline.segments[w][i].beg - _timeline.origin</div><div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;                         ).count() &lt;&lt; <span class="charliteral">&#39;,&#39;</span></div><div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;         &lt;&lt; <span class="stringliteral">&quot;\&quot;dur\&quot;:&quot;</span> &lt;&lt; <a class="codeRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/chrono/duration/duration_cast.html">std::chrono::duration_cast</a>&lt;<a class="codeRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::microseconds</a>&gt;(</div><div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;                           _timeline.segments[w][i].end - _timeline.segments[w][i].beg</div><div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160; 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os)<span class="keyword"> const </span>{</div><div class="line"><a name="l00490"></a><span class="lineno">  490</span>&#160;</div><div class="line"><a name="l00491"></a><span class="lineno">  491</span>&#160;  <span class="keywordtype">size_t</span> first;</div><div class="line"><a name="l00492"></a><span class="lineno">  492</span>&#160;</div><div class="line"><a name="l00493"></a><span class="lineno">  493</span>&#160;  <span class="keywordflow">for</span>(first = 0; first&lt;_timeline.segments.size(); ++first) {</div><div class="line"><a name="l00494"></a><span class="lineno">  494</span>&#160;    <span class="keywordflow">if</span>(_timeline.segments[first].size() &gt; 0) { </div><div class="line"><a name="l00495"></a><span class="lineno">  495</span>&#160;      <span class="keywordflow">break</span>; </div><div class="line"><a name="l00496"></a><span class="lineno">  496</span>&#160;    }</div><div class="line"><a name="l00497"></a><span class="lineno">  497</span>&#160;  }</div><div class="line"><a name="l00498"></a><span class="lineno">  498</span>&#160; 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       </div><div class="line"><a name="l00530"></a><span class="lineno">  530</span>&#160;        <span class="comment">// span </span></div><div class="line"><a name="l00531"></a><span class="lineno">  531</span>&#160;        os &lt;&lt; <span class="stringliteral">&quot;{\&quot;span\&quot;:[&quot;</span> </div><div class="line"><a name="l00532"></a><span class="lineno">  532</span>&#160;           &lt;&lt; <a class="codeRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/chrono/duration/duration_cast.html">std::chrono::duration_cast</a>&lt;<a class="codeRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::microseconds</a>&gt;(</div><div class="line"><a name="l00533"></a><span class="lineno">  533</span>&#160;                s.beg - _timeline.origin</div><div class="line"><a name="l00534"></a><span class="lineno">  534</span>&#160;              ).count() &lt;&lt; <span class="stringliteral">&quot;,&quot;</span></div><div class="line"><a name="l00535"></a><span class="lineno">  535</span>&#160;           &lt;&lt; <a class="codeRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/chrono/duration/duration_cast.html">std::chrono::duration_cast</a>&lt;<a class="codeRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::microseconds</a>&gt;(</div><div class="line"><a name="l00536"></a><span class="lineno">  536</span>&#160;                s.end - _timeline.origin</div><div class="line"><a name="l00537"></a><span class="lineno">  537</span>&#160;              ).count() &lt;&lt; <span class="stringliteral">&quot;],&quot;</span>;</div><div class="line"><a name="l00538"></a><span class="lineno">  538</span>&#160;        </div><div class="line"><a name="l00539"></a><span class="lineno">  539</span>&#160;        <span class="comment">// name</span></div><div class="line"><a name="l00540"></a><span class="lineno">  540</span>&#160;        os &lt;&lt; <span class="stringliteral">&quot;\&quot;name\&quot;:\&quot;&quot;</span>; </div><div class="line"><a name="l00541"></a><span class="lineno">  541</span>&#160;        <span class="keywordflow">if</span>(s.name.empty()) {</div><div class="line"><a name="l00542"></a><span class="lineno">  542</span>&#160;          os &lt;&lt; w &lt;&lt; <span class="charliteral">&#39;_&#39;</span> &lt;&lt; i;</div><div class="line"><a name="l00543"></a><span class="lineno">  543</span>&#160;        }</div><div class="line"><a name="l00544"></a><span class="lineno">  544</span>&#160;        <span class="keywordflow">else</span> {</div><div class="line"><a name="l00545"></a><span class="lineno">  545</span>&#160;          os &lt;&lt; s.name;</div><div class="line"><a name="l00546"></a><span class="lineno">  546</span>&#160;        }</div><div class="line"><a name="l00547"></a><span class="lineno">  547</span>&#160;        os &lt;&lt; <span class="stringliteral">&quot;\&quot;,&quot;</span>;</div><div class="line"><a name="l00548"></a><span class="lineno">  548</span>&#160;    </div><div class="line"><a name="l00549"></a><span class="lineno">  549</span>&#160;        <span class="comment">// category &quot;type&quot;: &quot;Condition Task&quot;,</span></div><div class="line"><a name="l00550"></a><span class="lineno">  550</span>&#160;        os &lt;&lt; <span class="stringliteral">&quot;\&quot;type\&quot;:\&quot;&quot;</span> &lt;&lt; <a class="code" href="task_8hpp.html#ab1887c186d5570390859f16705d79bf6">task_type_to_string</a>(s.type) &lt;&lt; <span class="stringliteral">&quot;\&quot;&quot;</span>;</div><div class="line"><a name="l00551"></a><span class="lineno">  551</span>&#160;</div><div class="line"><a name="l00552"></a><span class="lineno">  552</span>&#160;        os &lt;&lt; <span class="stringliteral">&quot;}&quot;</span>;</div><div class="line"><a name="l00553"></a><span class="lineno">  553</span>&#160; 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 <a class="codeRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/io/basic_ostringstream.html">std::ostringstream</a> oss;</div><div class="line"><a name="l00564"></a><span class="lineno">  564</span>&#160;  <a class="code" href="classtf_1_1TFProfObserver.html#a59e82cb3f9b0ada38aa1ddea14f14d02">dump</a>(oss);</div><div class="line"><a name="l00565"></a><span class="lineno">  565</span>&#160;  <span class="keywordflow">return</span> oss.str();</div><div class="line"><a name="l00566"></a><span class="lineno">  566</span>&#160;}</div><div class="line"><a name="l00567"></a><span class="lineno">  567</span>&#160;</div><div class="line"><a name="l00568"></a><span class="lineno">  568</span>&#160;<span class="comment">// Function: num_tasks</span></div><div class="line"><a name="l00569"></a><span class="lineno"><a class="line" href="classtf_1_1TFProfObserver.html#a8b3b0bee8762af654cfebd2bb2ee98ed">  569</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">size_t</span> <a class="code" href="classtf_1_1TFProfObserver.html#a8b3b0bee8762af654cfebd2bb2ee98ed">TFProfObserver::num_tasks</a>()<span class="keyword"> const </span>{</div><div class="line"><a name="l00570"></a><span class="lineno">  570</span>&#160; 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<div class="ttc" id="duration_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::microseconds</a></div></div>
<div class="ttc" id="classtf_1_1ChromeObserver_html_a3948e57186155a6934c100447cb9332d"><div class="ttname"><a href="classtf_1_1ChromeObserver.html#a3948e57186155a6934c100447cb9332d">tf::ChromeObserver::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">clears the timeline data </div><div class="ttdef"><b>Definition:</b> observer.hpp:237</div></div>
<div class="ttc" id="classtf_1_1TFProfObserver_html_a5e1f63034a96a5a79cef6da412efd203"><div class="ttname"><a href="classtf_1_1TFProfObserver.html#a5e1f63034a96a5a79cef6da412efd203">tf::TFProfObserver::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">clears the timeline data </div><div class="ttdef"><b>Definition:</b> observer.hpp:476</div></div>
<div class="ttc" id="classtf_1_1ObserverInterface_html_afa57654edd6d0fcf188a6064823f3048"><div class="ttname"><a href="classtf_1_1ObserverInterface.html#afa57654edd6d0fcf188a6064823f3048">tf::ObserverInterface::on_entry</a></div><div class="ttdeci">virtual void on_entry(size_t worker_id, TaskView task_view)=0</div><div class="ttdoc">method to call before a worker thread executes a closure </div></div>
<div class="ttc" id="classtf_1_1TFProfObserver_html_a59e82cb3f9b0ada38aa1ddea14f14d02"><div class="ttname"><a href="classtf_1_1TFProfObserver.html#a59e82cb3f9b0ada38aa1ddea14f14d02">tf::TFProfObserver::dump</a></div><div class="ttdeci">std::string dump() const</div><div class="ttdoc">dumps the timelines into a JSON string </div><div class="ttdef"><b>Definition:</b> observer.hpp:562</div></div>
<div class="ttc" id="duration_cast_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/chrono/duration/duration_cast.html">std::chrono::duration_cast</a></div><div class="ttdeci">T duration_cast(T... args)</div></div>
<div class="ttc" id="end_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/iterator/end.html">std::end</a></div><div class="ttdeci">T end(T... args)</div></div>
<div class="ttc" id="namespacetf_html"><div class="ttname"><a href="namespacetf.html">tf</a></div><div class="ttdef"><b>Definition:</b> flow_builder.hpp:9</div></div>
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<div class="ttc" id="classtf_1_1TFProfObserver_html"><div class="ttname"><a href="classtf_1_1TFProfObserver.html">tf::TFProfObserver</a></div><div class="ttdoc">observer interface based on Taskflow Profiler format </div><div class="ttdef"><b>Definition:</b> observer.hpp:356</div></div>
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<div class="ttc" id="classtf_1_1Executor_html"><div class="ttname"><a href="classtf_1_1Executor.html">tf::Executor</a></div><div class="ttdoc">execution interface for running a taskflow graph </div><div class="ttdef"><b>Definition:</b> executor.hpp:28</div></div>
<div class="ttc" id="classtf_1_1ObserverInterface_html"><div class="ttname"><a href="classtf_1_1ObserverInterface.html">tf::ObserverInterface</a></div><div class="ttdoc">The interface class for creating an executor observer. </div><div class="ttdef"><b>Definition:</b> observer.hpp:64</div></div>
<div class="ttc" id="classtf_1_1ChromeObserver_html_a44032b7607de5dd929683739f4df9ef2"><div class="ttname"><a href="classtf_1_1ChromeObserver.html#a44032b7607de5dd929683739f4df9ef2">tf::ChromeObserver::num_tasks</a></div><div class="ttdeci">size_t num_tasks() const</div><div class="ttdoc">queries the number of tasks observed </div><div class="ttdef"><b>Definition:</b> observer.hpp:311</div></div>
<div class="ttc" id="classtf_1_1ObserverInterface_html_adfd71c3af3ae2ea4f41eed26c1b6f604"><div class="ttname"><a href="classtf_1_1ObserverInterface.html#adfd71c3af3ae2ea4f41eed26c1b6f604">tf::ObserverInterface::~ObserverInterface</a></div><div class="ttdeci">virtual ~ObserverInterface()=default</div><div class="ttdoc">virtual destructor </div></div>
<div class="ttc" id="observer_8hpp_html_a4eea58a9e7eab408c44378dbc2be4f43"><div class="ttname"><a href="observer_8hpp.html#a4eea58a9e7eab408c44378dbc2be4f43">tf::observer_type_to_string</a></div><div class="ttdeci">const char * observer_type_to_string(ObserverType type)</div><div class="ttdoc">convert an observer type to a human-readable string </div><div class="ttdef"><b>Definition:</b> observer.hpp:595</div></div>
<div class="ttc" id="classtf_1_1ChromeObserver_html_a414d60cee91db1d3924636fcea5f4ea7"><div class="ttname"><a href="classtf_1_1ChromeObserver.html#a414d60cee91db1d3924636fcea5f4ea7">tf::ChromeObserver::dump</a></div><div class="ttdeci">std::string dump() const</div><div class="ttdoc">dumps the timelines into a Chrome Tracing format </div><div class="ttdef"><b>Definition:</b> observer.hpp:304</div></div>
<div class="ttc" id="classtf_1_1ChromeObserver_html"><div class="ttname"><a href="classtf_1_1ChromeObserver.html">tf::ChromeObserver</a></div><div class="ttdoc">observer interface based on Chrome Tracing format </div><div class="ttdef"><b>Definition:</b> observer.hpp:126</div></div>
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